Custom jQuery not working Pagelines 5

Hello,

Recently I’ve embedded custom jQuery into my website, the functions of this custom script it to allow the user to create more fields in order to input more data (if needed). The script is working on a test server I have setup but not on the site I want it to work on. I have a strong feeling it’s to do with the version of jQuery I am using. As I am using functions that are no longer used in version 11+